Improvement in slides for extension-tables



A. ZEH, G. P. LIVINGSTON &--P. V. W. BULLINGSQ v Slides for Extension-Tables. No. 143,5541 Patented Oct-7,1873.

UNITED STATES PATENT OFFIoE.

ALFRED ZEH. GEORGE P. LIVINGSTON, AND PETER v. w. OULLINGS, 0E

' GALLUPSVILLE, NEW YORK. I I

IMPROVEMENT IN SLIDES FOR EXTENSION-TABLES.

Specification forming part of Letters Patent No. 143,554, dated October 7, 1873; application fil d March 21, 1873.

To all whom it. may concern:

Be it known that we, ALFRED ZEH, GEO. P. LIVINGSTON, and PETER V. W. OULLINGs, of Gallupsville, in the county of Scoharie and State of New York, have invented a new and useful Improvement in Slides for Extension- Tables, 850.; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being had to :the accompanying drawings, in which- Figure 1 is a perspective view of our slide. Fig.2 is a transverse section, and Fig. 3 is a longitudinal section, of the same.

The object of our invention is to construct our slides with metallic guide-rods laid in the grooves, and metallic nuts to travel on said rods.

A B O are three sliding rails, representing one side of a table-slide. The middle rail, B, has a groove, a, cut in each of two of its sides; and the rails A U have one groove each, as shown. Within each of said grooves there is laid an iron guide-rod, D, secured at its ends by metallic caps 61. One end of each rail is connected to the guide-rod of its opposite rail by a sliding nut, E, arranged as shown in Fig. 3. v

The grooves a are out with parallel sides;

and the sliding nuts E are fitted rather loosely in said grooves, so that they have bearing-surfaces therein, and the load upon the table is, in part, sustained by said nuts resting in said grooves.

Wooden blocks 0 e, placed in the grooves beneath the guide-rocls, serve as stops to limit the relative movement of the sliding rails.

Having described our invention, what we claim as new is-- The slide-rails A B constructed with grooves a a, and the rods D D laid therein, substan- Witnesses:

PETER FRANK. CHARLES E. ZEH. 

